发明名称 |
WEIGHTED PREDICTION PARAMETER ESTIMATION |
摘要 |
Video coding systems incorporate techniques for deriving scalars W and/or O for use in weighted prediction. W represents a scaling factor and O represents an offset value. Given a frame of input video to be coded, a prediction match may be established one or more reference frames. The input frame may be parsed into a plurality of regions. Thereafter the scaling factor W and/or offset value O may be derived by developing a system of equations relating a predicted pixel to the pixel in the frame by the scaling factor W and/or offset value O. Equations within the system may be prioritized according to priority among regions, and scaling factor W and/or offset value O may be solved for. The scaling factor W and/or offset value O may be used during weighted prediction of the input frame.
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申请公布号 |
US2012207214(A1) |
申请公布日期 |
2012.08.16 |
申请号 |
US201113077803 |
申请日期 |
2011.03.31 |
申请人 |
ZHOU XIAOSONG;PRICE DOUGLAS SCOTT;LIN YAO-CHUNG;WU HSI-JUNG;APPLE INC. |
发明人 |
ZHOU XIAOSONG;PRICE DOUGLAS SCOTT;LIN YAO-CHUNG;WU HSI-JUNG |
分类号 |
H04N7/26 |
主分类号 |
H04N7/26 |
代理机构 |
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地址 |
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